<template>
	<view>
		抽奖
		<view class="">
			<navigation-bar :title="title" :btns="btns"></navigation-bar>
		</view>
		<view class="container" style="margin-top: -50rpx;position: fixed;">
			<!-- 背景 -->
			<image src="/static/images/bg.png" class="cont" mode=""></image>
			<image src="/static/images/caidai.png" class="caidai" mode=""></image>
			<view class="main" style="padding-top: 50upx;">
				<view class="canvas-container">

					<view :animation="animationData" class="canvas-content" id="zhuanpano" style="">
						<view class="canvas-line">
							<view class="canvas-litem" v-for="(item,index) in list" :key="index"
								:style="{transform:'rotate('+(index * width + width / 2)+'deg)'}"></view>
						</view>

						<view class="canvas-list">
							<view class="canvas-item"
								:style="{transform: 'rotate('+(index * width)+'deg)', zIndex:index, }"
								v-for="(iteml,index) in list" :key="index">
								<view class="canvas-item-text" :style="'transform:rotate('+(index )+')'">
									<text class="b" style="font-size: 32upx;">{{iteml.name}}</text>
									<text class="icon-awrad iconfont " :class="iteml.icon"></text>
								</view>
							</view>
						</view>
					</view>

					<view @tap="playReward" class="canvas-btn" v-bind:class="btnDisabled">开始 </view>
				</view>
			</view>
			<!-- 规则 -->
			<view class="guize" style="margin-top: 100upx;">
				<view class="title">
					规则说明
				</view>
				<view class="g_item">
					1.用户每天登录即送1次抽奖机会，分享好友则多赠1次机会
				</view>
				<view class="g_item">
					2.用户点击大转盘抽奖按钮，有积分和现金两种方式可参与抽奖，没抽一次消耗1次抽奖机会
				</view>
				<view class="g_item">
					3.用户获得的奖品，可在我的道具里查看
				</view>
			</view>
		</view>


	</view>
</template>

<script>
	import navigationBar from "@/components/navigation-bar/navigation-bar.vue" //导航栏
	export default {
		components: {
			navigationBar,
		},
		data() {
			return {
				title: '抽奖区',
				btns: '中大奖',
				list: [{
						"name": "5折",
						"value": "5",
						icon: 'icondazhe text-danger',
					},
					{
						"name": "6折",
						"value": "6",
						icon: 'icondazhe text-danger',
					},
					{
						"name": "7折",
						"value": "7",
						icon: 'icondazhe text-danger',
					},
					{
						"name": "8折",
						"value": "8",
						icon: 'icondazhe text-danger',
					},
					{
						"name": "9折",
						"value": "9",
						icon: 'icondazhe text-danger',
					},
					{
						"name": "感谢参与",
						"value": "10",
						icon: 'iconfangqi1 text-master',
						isNoPrize: true, // 是否未中奖
					},
				],
				width: 0,
				animationData: {},
				btnDisabled: '',
			}
		},
		onLoad: function() {
			// 获取奖品列表
			this.width = 360 / this.list.length
		},
		methods: {
			animation(index, duration) {
				//中奖index
				var list = this.list;
				// var awardIndex = 1 || Math.round(Math.random() * (awardsNum.length - 1)); //随机数
				var runNum = 4; //旋转8周

				// 旋转角度
				this.runDeg = this.runDeg || 0;
				this.runDeg = this.runDeg + (360 - this.runDeg % 360) + (360 * runNum - index * (360 / list.length)) + 1
				//创建动画
				var animationRun = uni.createAnimation({
					duration: duration,
					timingFunction: 'ease'
				})
				animationRun.rotate(this.runDeg).step();
				this.animationData = animationRun.export();
				this.btnDisabled = 'disabled';

			},
			//发起抽奖
			playReward() {
				let index = 1,
					duration = 4000
				this.animation(index, duration)

				setTimeout(() => {
					uni.showModal({
						content: this.list[index].isNoPrize ? '抱歉，您未中奖' : `恭喜，中奖${this.list[index].name}`
					})
					this.btnDisabled = '';
					// document.getElementById('zhuanpano').style=''
				}, duration + 1000)

			},
		}
	

	

	}
</script>

<style scoped>
	.icon-awrad {
		font-size: 50upx !important;
	}

	.conbox {
		width: 750upx;
		height: 100vh;
		overflow-x: hidden;
		overflow-y: scroll;
	}

	.container,
	image.cont {
		width: 750upx;
		min-height: 100vh;
		height: auto;
		position: relative;
	}

	image.cont {
		height: 100%;
		position: absolute;
		z-index: 0;
	}

	image.caidai {
		position: absolute;
		top: 0;
		left: 0;
		width: 750upx;
		height: 1024upx;
	}


	.header-title>view {
		padding: 8upx 16upx;
		border: 1px solid #d89720;
		color: #d89720;
		font-size: 28upx;
		border-radius: 26upx;
	}

	/* 转盘 */
	.canvas-container {
		margin: 0 auto;
		position: relative;
		width: 600upx;
		height: 600upx;
		background: url(/static/images/circle.png) no-repeat;
		background-size: cover;
		border-radius: 50%;
	}


	.canvas-content {
		position: absolute;
		left: 0;
		top: 0;
		z-index: 1;
		display: block;
		width: 600upx;
		height: 600upx;
		border-radius: inherit;
		/* background-clip: padding-box; */
		/* background-color: #ffcb3f; */
	}

	.canvas-list {
		position: absolute;
		left: 0;
		top: 0;
		width: inherit;
		height: inherit;
		z-index: 9999;
	}

	.canvas-item {
		position: absolute;
		left: 0;
		top: 0;
		width: 100%;
		height: 100%;
		color: #e4370e;
		/* text-shadow: 0 1upx 1upx rgba(255, 255, 255, 0.6); */
	}

	.canvas-item-text {
		position: relative;
		display: block;
		padding-top: 46upx;
		margin: 0 auto;
		text-align: center;
		-webkit-transform-origin: 50% 300upx;
		transform-origin: 50% 300upx;
		display: flex;
		flex-direction: column;
		align-items: center;
		color: #FB778B;
	}

	.canvas-item-text text {
		font-size: 30upx;
	}

	/* 分隔线 */
	.canvas-line {
		position: absolute;
		left: 0;
		top: 0;
		width: inherit;
		height: inherit;
		z-index: 99;
	}

	.canvas-litem {
		position: absolute;
		left: 300upx;
		top: 0;
		width: 3upx;
		height: 300upx;
		background-color: rgba(228, 55, 14, 0.4);
		overflow: hidden;
		-webkit-transform-origin: 50% 300upx;
		transform-origin: 50% 300upx;
	}

	/**
* 抽奖按钮
*/
	.canvas-btn {
		position: absolute;
		left: 260upx;
		top: 260upx;
		z-index: 400;
		width: 80upx;
		height: 80upx;
		border-radius: 50%;
		color: #f4e9cc;
		background-color: #e44025;
		line-height: 80upx;
		text-align: center;
		font-size: 26upx;
		text-shadow: 0 -1px 1px rgba(0, 0, 0, 0.6);
		box-shadow: 0 3px 5px rgba(0, 0, 0, 0.6);
		text-decoration: none;
	}

	.canvas-btn::after {
		position: absolute;
		display: block;
		content: ' ';
		left: 12upx;
		top: -44upx;
		width: 0;
		height: 0;
		overflow: hidden;
		border-width: 30upx;
		border-style: solid;
		border-color: transparent;
		border-bottom-color: #e44025;
	}

	.canvas-btn.disabled {
		pointer-events: none;
		background: #b07a7b;
		color: #ccc;
	}

	.canvas-btn.disabled::after {
		border-bottom-color: #b07a7b;
	}


	.typecheckbox view {
		border: 1px solid #FF3637;
		background: transparent;
		color: #FF3637;
		display: flex;
		height: 60upx;
		width: 140upx;
		border-radius: 50upx;
		align-items: center;
		justify-content: center;
		display: flex;
		margin-left: 20upx;
	}


	.guize {
		width: 502upx;
		min-height: 300upx;
		display: flex;
		flex-direction: column;
		position: relative;
		z-index: 3;
		background-image: linear-gradient(-180deg, #F48549 0%, #F2642E 100%);
		border: 18upx solid #E4431A;
		border-radius: 16px;
		margin: 0 auto;
		margin-top: -104upx;
		padding: 48upx;
		/* box-sizing: border-box; */
		color: #fff;
	}

	.guize .title {
		text-align: center;
		margin-bottom: 28upx;
	}

	.guize .g_item {
		font-family: PingFang-SC-Medium;
		font-size: 24upx;
		color: #FFFFFF;
		letter-spacing: 0.5px;
		text-align: justify;
		line-height: 20px;
	}

	.myrewards .title {
		font-family: PingFang-SC-Bold;
		font-size: 16px;
		color: #E4431A;
		letter-spacing: 0.57px;
		display: flex;
		padding-top: 36upx;
		justify-content: center;
	}
</style>
